Has low somewhat distorted output thru send jack only. Replaced all power/preamp tubes w/known good tubes. Contact cleaner on cables in efx loop in and out/overnight, jumped efx loop: No change. Have schematic, multimeter, some exp. desoldering, soldering caps/resistors, etc. No how to drain voltage off before working on an amp. Any ideas would be greatly appreciated.
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Laney TT50H No Output
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Re: Laney TT50H No Output
Effects loop was my Laney's kryptonite
But you've done that
Can you plug into the effects return and get any sound
This divides the amps preamp and power amp
If no sound from fx return then its probably the output section is badEHD
Just here surfing Guitar Pron
RG2EX1 w/ SD hot-rodded pickups / RG4EXFM1 w/ Carvin S22j/b + FVN middle
SR500 / Martin 000CE-1/Epiphone Hummingbird
Epiphone Florentine with OEM Probuckers
Ehdwuld branded Blue semi hollow custom with JB/Jazz
Reptile Green Gibson Custom Studio / Aqua Dean Shire semi hollow with piezo
Carvin Belair / Laney GC80A Acoustic Amp (a gift from Guitar Player Mag)
GNX3000 (yea I'm a modeler)
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Re: Laney TT50H No Output
Just ran line out and record out to another amps input and got a good clean signal. None of the preamp controls on channels 1,2,3 work, but volume 1 and volume 2 work, amp mute works, and fx mix is scratchy and tries to cut volume off at "0" but intermittent scratchy signal still comes thru at "0". Also, there is a high pitched whistle if volume is turned up past "8" on either amp. 2nd amp does not do this when TT50H is not plugged into it. Previously jumped efx loop with no change in output.
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Re: Laney TT50H No Output
Originally posted by ca7922303 View PostJust ran line out and record out to another amps input and got a good clean signal. None of the preamp controls on channels 1,2,3 work, but volume 1 and volume 2 work, amp mute works, and fx mix is scratchy and tries to cut volume off at "0" but intermittent scratchy signal still comes thru at "0". Also, there is a high pitched whistle if volume is turned up past "8" on either amp. 2nd amp does not do this when TT50H is not plugged into it. Previously jumped efx loop with no change in output.
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Re: Laney TT50H No Output
Shoot yeahEHD
Just here surfing Guitar Pron
RG2EX1 w/ SD hot-rodded pickups / RG4EXFM1 w/ Carvin S22j/b + FVN middle
SR500 / Martin 000CE-1/Epiphone Hummingbird
Epiphone Florentine with OEM Probuckers
Ehdwuld branded Blue semi hollow custom with JB/Jazz
Reptile Green Gibson Custom Studio / Aqua Dean Shire semi hollow with piezo
Carvin Belair / Laney GC80A Acoustic Amp (a gift from Guitar Player Mag)
GNX3000 (yea I'm a modeler)
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